Phase 2 study evaluating an investigational weekly oral combination treatment regimen of islatravir and Gilead Sciences’ lenacapavir to resume with lower dose of islatravir
Monthly oral islatravir development for pre-exposure prophylaxis (PrEP) to be discontinued; Merck continues to evaluate other long-acting PrEP candidates
RAHWAY, N.J., September 20, 2022–(BUSINESS WIRE)–Merck (NYSE: MRK), known as MSD outside of the United States and Canada, announced today that the company will initiate a new Phase 3 clinical program with once-daily islatravir for the treatment of people with HIV-1 infection. These new Phase 3 studies will evaluate a once-daily oral combination of doravirine 100 mg and a lower dose of islatravir (DOR/ISL). One study will evaluate DOR/ISL in previously untreated adults with HIV-1 infection and two studies will evaluate DOR/ISL as a switch in antiretroviral therapy (ART) in adults with HIV-1 infection who are virologically suppressed. Certain study participants currently enrolled in once-daily treatment studies with DOR 100 mg/ISL 0.75 mg will have the option of transitioning to a new study with the lower islatravir dose. The U.S. Food and Drug Administration (FDA) has reviewed and agreed with this plan. The investigational new drug application (IND) for the once-daily oral DOR/ISL treatment program remains under a partial clinical hold for any studies that would use doses higher than the dose to be studied in the new Phase 3 program. Refer here for…
